Improvement in leather-cutting machines



2 Sheets-Sheet l. A. TEAS.

Leather-Cutting Ma'ohin. No; 217,428.

Patented July 8,1879.

J11. .1IIIIA I ll l llFll l x il t l W'fnesses.

N. PETERS. PMOTlLLITHUGRAPHER, WASWNGTON, D 54 2 Sheets-Sheet 2.

A TEAS Leather-Cutting Machine. No. 217,428.

Patented July 8,1879.

N,PETERS, PMOTO-UTHOGRAPHER UNITED STATES PATENT OEEIoE.

ANDREW TEAS, OF NEWARK, NEW JERSEY, ASSIGNOR OF ONE-THIRD HIS RIGHT TONICHOLAS VAN NESS, OF SAME PLACE.

IMPROVEMENT lN LEATHER-CUTTING MACHINES.

Specification forming part of Letters Patent No. 217,428, dated J nly8,1879; application filed November 12, 1878.

To all whom it may concern:

Be it known that I, ANDREW TEAS, of Newark, in the county of Essex, inthe State of New Jersey, have invented a new and useful Machine forCutting, Skiving, Greasing, and Polishing Leather Straps, 85c. and. I dohereby declare that the following is a full and exact description of mysaid machine.

In the drawings, Figure 1 is a plan view. Fig. 2 is a cross-section, butshows the polishing-roller in side elevation. Fig. 3 is a longitudinalsection. Fig. 4 is a detail, showing the skiving-knives. Fig. 5 is adetail, showing the creasing-knives or creasers.

My invention chiefly consists in a work- .table provided with a suitablemechanism, as of rack and pinion, whereby knives adapted to act ascutters, skivers, and creasers are made to traverse a metal pattern, andcut, skive, and crease the leather or other material in conformity tothe shape of the pattern.

In the drawings, A represents the table or bench which carries themachinery; A, bedplate. leather, pasteboard, or other material is to beout.

In the drawings the pattern is of the ordinary wave-line; but it may beof any desired shape, and be adapted to straps, saddle-flaps,

or other forms. This pattern B is secured longitudinally upon the top-ofthe bed-plate A by screws, and is readily movable, so that a differentpattern may be substituted. There are flanges c c at each edge and underthe pattern. These flan ges guide the knives, which traverse the edgesof the pattern.

E is a guide to direct the leather being cut.

The bed-plate A is provided with two racks,

R B, on the under side, into which engagethe driving pinions P P. Thesepinions are fast on shaft S, and are operated by crank H or by belt andpulley, and, when revolved, move the rack and bed-plate, with pattern B,from one end to the other of table A.

K K are two knives, loosely sliding upon a square shaft, D, which istransverse to the table. These knives have tongues o 0, which engagewith the flanges c 0 on under side of the pattern B, (see Fig. 2,) sothat the knives are at all times held with their edges snug up B is themetal pattern by which the against the edge of the pattern, and as thepattern is moved by the rack and pinion the knives will cutthe leatherin conformity to the pattern.

L is a cam-lever, arranged so as to throw the knives K K into or out ofoperative connection with the pattern. X X are skivers orbeveling-knives, for skiving or beveling the edges of the straps orother articles cut by knives K. They are shown in Fig. 4, and aresecured to and slide upon shaft D, and are operated by the flanges ofthe pattern in the same way as are knives K.

In Fig. 5 are shown creasing-knives or creasers V, which are at propertime secured to shaft D, and operated by the pattern, as abovedescribed.

0 is a polishing-roller, thrown in or out of action by lever 1, andhaving its journals in hanger-frame G, which is secured to the tabletransversely. After the leather straps, 850., are cut, skived, andcreased they are passed under roller 0 and polished.

When a whole hide is being cut I use only one knife. The leather issecured to end of bed-plate, and is drawn against the knives.

Heretofore it has required skilled labor to cut leather or othermaterial-such as pasteboard--into straps or other shapes having either awaved or curved outline; but by my invention any ordinaryworkman cancut, skive, and crease and polish any form ac cording to pattern, andvvith a rapidity many times greater than a good workman by the oldmethod.

What 1 claim as my invention, and desire to secure by Letters Patent, is

1. In a machine for cutting, skiving, and creasing leather, thecombination of cutting, skiving, or creasing tools with a moving pattern and mechanism, substantially such as de scribed, for connectingsaid tools and pattern, so that the pattern shall actuate the tools,substantially as described.

2. In a cutting, skiving, and creasing ma chine, the combinationofcutting, skiving, or creasing tools with a moving pattern and flangesfor connecting the two, substantially as and for the purpose set forth.

3. The combination of cutting, ski'ving, or

creasing tools, a fixed shaft or bar, and a movable pattern-carryingtable, substantia ly as ing pattern having'fianges, by which the saidand for the purpose specified.

tools are connected thereto to operate them substantially as described.7 ANDREW TEAS 4. In a machine for cutting, skiving, and Witnesses:

creasing straps, a polishing-roller suspended J. G. CLAYTON,

above and in operative connection with a mov- E. C. WEBB,

